Combined speaker box and amplifier



FIG. 1 is a top plan view of a combined speaker box and amplifier showing my new design;

FIG. 2 is a left-side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right-side view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view. 

The ornamental design for a combined speaker box and amplifier, as shown and described. 